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In this paper, a pulse width modulation (PWM) control approach to speed trackong control is developed for the three-phase induction motor in electric vehicles. The PWM technique is amployed to design controllers. By incorporating the three-phase bridge recifier into the motor based on the PWM technique...

The plain area of the Du Jiang Yan city was the key area of the reconstruction area after the 2008’s earthquake, so the land use in this area had experienced a large-scale and fast change from 2009 to 2012. Two temporal remote sensing images, taken by the HJ satellite in the April of 2009 and 2012, are...

Due to the non-linearity, randomness factors in the process of actual control, we always can't get the accurate mathematical model of controlled object and the disturbances from outside may also cause serious influence to the controlled system, in this case using the conventional PID controller often...

This paper proposed a novel Biologically Inspired Neural Networks-central pattern generator (CPG) model with proprioceptive and reflex mechanism. It not only contains inner sensory information but also contains the information of the actuators and automatically tunes the parameter of CPG correspond to...

A new technology to obtain a fine-structured and high-toughness HAZ of HSLA steel for high heat input welding is developed using metallurgical thermodynamics, physical chemistry of metallurgy and material processing methods synthetically in this study. A kind of HSLA steel is designed in this experiment....

The data structures course, as a fundamental course in applied undergraduate computer-related majors, bears the responsibility of imparting algorithm knowledge, cultivating logical thinking, and conducting programming practices based on the disciplinary background. It also expands innovation and establishes...

In recent years, due to the rapid development and widespread use of computer technology, computerized accounting has become the development trend of accounting work. Accounting computerization has the advantages of fast operation, large storage capacity, fast retrieval speed and accurate data analysis,...

The traditional agricultural areas have weak and inefficient industries, poor liquidity of production factors, poor spatial agglomeration and slow urbanization. The establishment of a long-term mechanism of mutual promotion of new urbanization and agricultural modernization in traditional agricultural...

Thirty-two female college students with simple obesity were selected via tests, questionnaires and interviews and randomly divided into the experimental group (4 times a week, 90 minutes each time) and control group (daily walking, sitting and lying without extra exercise). Meanwhile, the sleep and diet...

Under the new development pattern, it is necessary for the logistics industry to play its leading and linking role better. Port is an important window for domestic and foreign trade, and the sustainable and healthy development of its logistics system is particularly important. Vulnerability is an important...

With the continuous introduction of national carbon emission reduction policies, especially in the field of logistics and distribution, the use of electric vehicles can effectively reduce carbon emissions and the key factors are charging mode and time window constraints and the choice of charging piles,...

Taking Chinese reading class in primary school as an example, gamification teaching is combined with self-determination theory, and a student’s learning motivation is first encouraged to be internalized in accordance with the demands of talent cultivation in the new era. The findings demonstrate that...

The effect of sulfate polysaccharide (SGP) isolated from the seaweed Sargassum graminifolium on the growth of urinary crystal calcium oxalate ( CaOx ) was investigated by means of Electrical conductivity. The results showed that adding solution of SGP can inhibit on CaOx crystallization under the same...

Frequent high temperature has become an important agricultural meteorological disaster to the middle-season rice yield and quality in southwest China where has hot rainy season and obviously three-dimensional climate. This paper analyses the meteorological data of more than 70 weather stations in southwest...

In this experiment, Ziziphus jujube ‘Mizao’ was used as the test material, and potassium nitrate which is of different concentrations (3%, 6%, 9%) was used to conduct the breaking dormancy test in the dormancy phase. The treatment with clear water was used as a control to explore the effect of potassium...

With the development of technology, the arrival of big data has brought great conveniences to people’s daily life. The wide application of 5G has also brought unprecedented development opportunities to the contemporary media industry. Almost everyone cannot live without technology. Therefore, the paper...

Materials in the development of the whole human art design play a role, played by no doubt, penetrating art, life, society and science fields. Molding material is the material base of interior design, as the design of chemical engineering works, whether to use function, or the satisfaction of mental...

In this paper, we conduct research on major factors that influence the consumer psychology in marketing process. In marketing system, customer relationship management mainly summarized as: the purpose of the enterprise with the high quality products, fast and perfect service to attract new customers,...

The Haerbing-dalian high-speed railway subgrade packing is as the research object. Influence factors of frost damage are analyzed, such as packing soil(size composition,Mineral composition,compactness),moisture,temperature external load and salt content, etc. Through characteristic tests of frost heaving,...

Currently the textbooks for TCM (Traditional Chinese Medicine) English are limited and updated slowly, and the information resources are relatively scarce. TCM English urgently needs a platform for resources and communication which will provide TCM English with superior service for the information communication,...

CCTV headquarters was selected as the research object in this paper. The building is located in the sandstorm area of Beijing and is plagued by wind and sand all year round. In order to verify the stability of the building under various vibration conditions, ANSYS simulation software was used to analyse...

It is a serious problem to be solved that how to cultivate engineering management vocational and technical undergraduates which fit market demand and the engineering management education of non-key universities is on a very awkward and an important position. This paper draws on the experiences of first-class...

A quantitative mathematical model of mixed noise sources is proposed, which based on equivalent consecutive sound level , aiming at overcoming the defect of A-weighted sound level, by workers’ subjective response to noises cannot be represented. Multiple acoustic field Contour map is used to visualize...

Eco-translation is to select translation works based on the original ecological structure of the original text, and to reproduce the original ecological structure in another language. As more and morepeople in the translation community at home and abroad began to pay attention to eco-translatology, some...

The graduate education in Jilin Province started earlier and has been showing a relatively stable structure after many years of exploration and development. But there are still several problems, such as an imbalance between academic education and professional education, the imperfect quality of graduate...

This study introduces a probabilistic and interpretable method for assessing slope stability using Particle Swarm Optimization (PSO), LightGBMLSS, and Shapley Additive Explanations (SHAP). The method models the probability distribution of the slope safety factor through the LightGBMLSS model, with hyperparameters...

Based on Plant Growth Simulation Algorithm, we propose a novel algorithm for solving permutation flow shop scheduling problems. Starting with the characteristic of permutation flow shop scheduling problems, combining disjunctive graph according to the sequence of scheduling, analyzing Scheduling options...

China and Japan, neighbors separated by a strip of water, have a long history of exchanges of more than 2,000 years. Since modern times, Chinese people’s view of Japan has undergone complex changes according to the trend of Sino-Japanese relations, and Yan Fu’s view of Japan is one of the representatives....

In the present work, a novel heterostructured dye-sensitized solar cell (DSSC) was fabricated by using simple spin-coating steps. g-C3N4 and Ag modified TiO2 microspheres were used as the photoanode materials. The aim of this study was to modify TiO2 microspheres by using g-C3N4 so as to retard the recombination...

This article adopts the method of empirical analysis to study the existence of real earnings management in the process of the growth enterprise market (GEM) IPO, and to investigate its impact on firm performance. The study found that Significant negative correlation relationship exists between real earnings...

Taking into account the development trend of distributed photovoltaic power generation, there will be a high permeability of PV in the future distribution network, and the traditional three stage current protection will be no longer applicable because of the malfunction or rejection. In order to maximize...

Researching on fluid-solid coupling problem of wind turbine can help improve the optimization of global structure of wind turbine and improve the level of the blades design, which has been one of the current research hotspots and difficulties in the field of wind turbine design. This paper describes...

The trial Ziziphus jujuba ‘Zhanshanmizao’ as test materials, test its dormant stage breaking dormancy select different concentrations of potassium nitrate (3%, 6%, 9%), the control of water treatment, study the changes of water, organic substances (starch, soluble sugar, soluble protein, free amino acid)....

The Chinese TV drama industry is one of the focuses of Chinese cultural industry in recent years. The status of TV drama industry can be observed by observing the development of TV drama procurement in the past six years. By observing the phenomenon of capital bubble and capital winter in the TV drama...

Multi-outlet link has been widely used in the campus network. Based on the actual case, this paper introduces how to use DNS to adjust the inbound and outbound traffic of multi-outlet network, the users do not need to modify the client.According to the actual use of the outlet link, we can take the precedence...

In order to improve the intelligent decision-making level of participatory sensing system, this paper proposes a new mutual inductance search algorithm. This algorithm uses opportunistic routing principle to select the nodes in the channel, by selecting the closest node as the next hop node, which can...

In this information age, the role of network information resources is huge and physical education at the new era is inseparable from the computer network information resources. The role of network information resources is not only applied in the company management, it can also be used in college education....

With the continuous development of IoT technology, IoT technology has an increasingly important role in experimental teaching. In response to the problem that traditional robotics experiments are usually restricted by space and experimental funding, resulting in unsatisfactory experimental teaching results,...

This paper extracted oil spill which happened in Gulf of Mexico using two images obtained from MODIS on May 17,2010 and May 24,2010, and then analyzed the accuracy of extraction results based on the confusion matrix. It was conducted with eigenvectors built by multi-spectral information and spectral...

The effects of different concentrations of gibberellin (GA3) on fruit preservation and quality and the physiological mechanism of action were studied. The results showed that the soluble sugar content of Zizyphus Jujuba ‘Zhanshanmizao’ was on the rise from young fruit stage to mature stage and fluctuated...

English for civil engineering in colleges is part of English for specific purpose (ESP) which rose in the 1960s, while its research in China is still in early stage and it aims mainly on economic English but seldom on civil engineering English in China. The paper is about to propose a teaching reform...

Seam Carving, the popular content-aware image resizing technique, removes or inserts seams of low energy iteratively without sufficiently considering their impact on the global visual quality of the image. However, sometimes seams pass through the regions of interest (ROIs) with low energy and distort...

Defect identification is the fundamental prerequisite for the vehicle recall, the previous precedents can serve as the most direct and effective evidences for the following defect identification. This paper explores a defect identification method on the basis of case-based-reasoning, and develops the...

Based on the IO-SDA economic growth factor model, the Gansu Provincial Input-output Table from 2002 to 2012 was used to analyze the industrial structure related issues. Studies have shown that traditional industries such as extractive industries, petroleum and petrochemical industries, and textile industries...

With the popularity of computer networks, more and more college students addicted to the Internet, while ignoring the physical education and exercise. According to this kind of situation, it is necessary to combine the functions and advantages of the computer network to stimulate the interest of college...

Ili, Xinjiang, is a large opening and core pivot of “the Silk Road Economic Belt and the 21st-Century Maritime Silk Road” (“the Belt and Road”) opening to the West of China. Yining, the capital city, is the most western border city and state-level excellent tourist city and opens to the countries along...

"2011 collaborative innovation center" aims to promote innovation ability of talent, discipline and scientific research, but now the collaborative innovation centers focus on scientific research and the development of the subject, ignoring personnel training,particularly despised training of the group...

Analyzed how did the fiber length, the attenuation and the average photon number of the pulse emitted by the single photon source affect the receive efficiency in the fiber channel quantum key distribution system based on the BB84 protocol. A theoretic model relative to the system was represented. It...

Agriculture in China has always been in a basic strategic position in the social and economic development, so developing modern agriculture and building agricultural products brand at the same time will undoubtedly promote the development of agriculture and the competitiveness of agriculture in the international...

MicroRNA regulatory module (MRM) plays an important role in the study of microRNA synergism. To detect MRMs, researchers have developed a number of related methods in the preceding decades. However, some existing methods are stochastic or specific to a certain situation. In this paper, we presented a...